Tech executives head to U.S. Congress under harsh spotlight

WASHINGTON (Reuters) - Facebook Inc , Twitter Inc and Alphabet Inc's Google head before U.S. lawmakers on Tuesday for two days of grueling hearings on how Russia allegedly used their services to try to sway the 2016 U.S. election.

WASHINGTON (Reuters) - Facebook Inc , Twitter Inc and Alphabet Inc's Google head before U.S. lawmakers on Tuesday for two days of grueling hearings on how Russia allegedly used their services to try to sway the 2016 U.S. election.